Classification of tapered roller bearings
Single row tapered roller bearing
A single row tapered roller bearing has an outer ring and an inner ring and a set of tapered rollers are enclosed by a basket cage to form an inner ring assembly. The outer ring can be separated from the inner ring assembly. According to the ISO external dimension standard for tapered roller bearings, any standard type of tapered roller bearing outer ring or inner ring assembly shall be able to achieve international exchange with an outer ring or inner ring assembly of the same type. The dimensions and tolerances of the outer ring of the same type must meet the requirements of ISO492 (GB307), and the cone Angle and cone diameter of the inner ring components must also meet the relevant provisions of the exchange.
Generally, the conical Angle of the outer raceway of single row tapered roller bearings is between 10° and 19°, which can bear the joint action of axial load and radial load at the same time. The greater the cone Angle, the greater the axial load-bearing capacity. Bearings with large taper angles, add B in later code, taper angles between 25° and 29°, can withstand greater axial loads. In addition, single-row tapered roller bearings can adjust the size of the clearance during installation.
Double row tapered roller bearing
The outer ring (or inner ring) of double row tapered roller bearings is a whole. The small ends of the two inner rings (or outer rings) are similar and there are gaskets in the middle. The clearance is adjusted by the thickness of the gasket. The thickness of the gasket can also be used to adjust the pre-interference of double row tapered roller bearings.
Four rows of tapered roller bearings
Four rows of tapered roller bearings. The performance of this type of bearing is basically the same as that of double row tapered roller bearings, but it bears a greater radial load than double row tapered roller bearings and has a slightly lower limit speed. Mainly used in heavy machinery.
Multiple sealed double row and four-row tapered roller bearings
Multi-sealed double row and four-row tapered roller bearings, ZWZ offers long life, multi-sealed double row and four-row tapered roller bearings. A new personalized bearing design, change the traditional fully sealed bearing design method, the use of sealing and dustproof combination of the new sealing structure, improves the sealing effect, improve the sealing performance. Compared with open structure bearings, the service life of double-row and four-row tapered roller bearings with multiple seals is increased by 20%-40%; Lubricating oil consumption can be reduced by 80%.
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